Bandwidths: (A) 800 / 1900MHz (B) 900 / 1800MHz Part # (A) DPA2N819 (B) DPA2N918
A - Dual Band - USA (GSM850 / CDMA / 3G)B - Dual Band - Global (GSM / DCS)C - Dual Band Global (GSM / UMTS / 3G)